Described as two or maybe more vascular malformations located in a person lesion. Abnormalities in the origin/class/number of big blood vessels which have anatomical names Syndromes during which vascular malformations are complex by symptoms in addition to vascular anomalies Lesions are in near proximity to big constructions or obstruct inflow https://www.sgvascularctr.com/service/vascular-malformations/